Help recreating this drink?

My wife recently went on a trip to japan and had this specific mango liqueur and she really liked it. sadly they don’t sell it in the US, I was wondering if someone could guide me on how to make it. (completely legal where I’m at) it’s a type of YuzuShu which is a mix of yuzu juice and sake/shochu, but with this being mango, Im unsure if it’s mango juice instead or in conjunction with the yuzu juice. any advice would be appreciated.